package test;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Servlet implementation class SampleServlet
 */
@WebServlet("/SampleServlet")
public class SampleServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public SampleServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		response.setContentType("text/html");
		String userName = request.getParameter("userName");
		HttpSession session = request.getSession();
		ServletContext context = request.getServletContext();
		
		if(userName != null && userName.length() > 0)
		{
			session.setAttribute("sessionUsername", userName);
			context.setAttribute("contextUsername", userName);
		}
		PrintWriter w = response.getWriter();
		w.println("Username = " + userName);
		w.println("Session Username = " + request.getSession().getAttribute("sessionUsername"));
		w.println("Context Username = " + context.getAttribute("contextUsername"));
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
	}

}
